| Grekowicz, Robert J.; 1937 Red Book; 1937 | 1937 Red Book | 1937-00-00 | HURLBUT W. SMITH | Captain |
| Grekowicz, Robert J.; 1941 Red Book; 1941 | 1941 Red Book | 1941-00-00 | HURLBUT W. SMITH | Captain |
| Grekowicz, Robert J.; 1942 Red Book; 1942 | 1942 Red Book | 1942-00-00 | HURLBUT W. SMITH | Captain |
| Grekowicz, Robert J.; 1943 Red Book; 1943 | 1943 Red Book | 1943-00-00 | HURLBUT W. SMITH | Captain |
| Grekowicz, Robert J.; 1945 Red Book; 1945 | 1945 Red Book | 1945-00-00 | JOHN DUNN JR. | Captain |
| Grekowicz, Robert J.; 1946 Red Book; 1946 | 1946 Red Book | 1946-00-00 | JOHN DUNN JR. | Captain |
| Grekowicz, Robert J.; 1947 Red Book; 1947 | 1947 Red Book | 1947-00-00 | LYMAN C. SMITH | Captain |
| Grekowicz, Robert J.; 1949 Red Book; 1949 | 1949 Red Book | 1949-00-00 | LYMAN C. SMITH | Captain |
| Grekowicz, Robert J.; 1950 Red Book; 1950 | 1950 Red Book | 1950-00-00 | JOHN B. COWLE | Captain |
| Grekowicz, Robert J.; 1951 Red Book; 1951 | 1951 Red Book | 1951-00-00 | JOHN B. COWLE | Captain |
| Grekowicz, Robert J.; 6/48 Great Lakes Review; 1948 | 6/48 Great Lakes Review | 1948-00-00 | LYMAN C. SMITH | Captain |
| Grekowicz, Robert J.; Great Lakes News 7/44; 1944 | Great Lakes News 7/44 | 1944-00-00 | SMITH THOMPSON | Captain |
| Grekowicz, Robert J.; LCA Bulletin, August, 1940 | LCA Bulletin, August, 1940 | 1940-00-00 | HURLBUT W. SMITH | Captain |